Organic-component dependent thermal conductivity reduction in ALD/MLD grown ZnO:organic superlattice thin films

Inorganic–organic superlattice (SL) thin films are intriguing candidates for flexible thermoelectric applications; in such SLs, the heat conduction can be efficiently blocked at inorganic/organic interfaces. Fabrication of these materials using atomic/molecular layer deposition (ALD/MLD) technique allows precise layer-sequence manipulation. Another unique advantage ALD/MLD is its capability to yield conformal coatings even on demanding substrates as textiles. These benefits have been demonstrated previous works SL where ZnO serves inorganic matrix and hydroquinone organic component. In this work, we extend study three other components, i.e., p-phenylenediamine, terephthalic acid, 4,4?-oxydianiline, address importance bonding structure density difference interface, thickness monomolecular blocking layer.